Senior Backend Engineer | $6.5B AI Healthcare Startup
Day One Partners
About The Role Join a high-growth healthcare technology company building AI-powered tools that improve clinical workflows and operational efficiency at scale. This is an opportunity to work on mission-critical infrastructure supporting providers, health systems, and millions of patient interactions nationwide. What You’ll Do Design and scale backend systems powering AI-driven healthcare applications Build reliable, production-grade services using Python and modern web frameworks Collaborate cross-functionally to deliver new features in a fast-paced environment Improve platform performance, observability, and system reliability Work closely with users to solve real-world operational challenges What You’ll Bring 3+ years of professional software engineering experience Strong backend development skills with Python and API frameworks Experience working with cloud infrastructure, containers, and distributed systems Familiarity with monitoring, metrics, and production support best practices Strong product instincts and a customer-focused mindset Why You’ll Love This Role Build impactful AI products transforming healthcare operations Work alongside a fast-moving, highly collaborative engineering team Opportunity for significant ownership, growth, and technical influence #J-18808-Ljbffr Day One Partners
- We're a team of ex-Googlers, startup veterans, industry and healthcare experts. We're backed by Kleiner Perkins... ...a selection of executives across AI and tech: Ian Goodfellow, Gokul Rajaram... .... We are in search of a seasoned backend engineer to build and scale up the core of...SeniorTemporary workFlexible hours
- ...the first 25 applicants Get AI-powered advice on this job and... ...features. We’re looking for a senior backend engineer who can architect and scale... ...minimal oversight. You should have startup DNA, a product mindset, and a... ...What We’re Looking For: 6-10+ years of backend engineering...SeniorFull time
$230k - $280k
Healthcare is broken at the first step: patients can't... ...this. We're building an AI-driven marketplace... ...The Role At Mochi, our engineering team operates with exceptional... ...We are looking for a Senior Backend Engineer to own the... ...5.3, Claude Opus 4.6) to build faster. You...SeniorCasual workWork at officeRemote workWeekday work$160k - $200k
...whole genome sequencing, advanced AI methods for genome... ...will demonstrate knowledge of healthcare data and an eagerness to build... ...Do: Add new features to our backend systems to support portal enhancements... ...we want to talk with you. ~6+ years of software development...SeniorRemote work- ...difference in the future of healthcare Join an early stage team... ...Department HealthLeap is an AI start-up revolutionizing healthcare... .... We're seeking a talented Backend Software Engineer to join our innovative team... .... Previous work in a startup environment or scaling...SuggestedFull timeWork at officeMonday to Friday
$200k - $250k
A cutting-edge healthcare technology company is seeking a Senior Backend Engineer to ensure the stability and performance of its AI systems. The ideal candidate should have over 8 years of experience with Django and familiarity with LLMs in a production setting. This role...Senior$160k - $210k
Ellipsis Health is seeking a Senior Backend Engineer to design, build, and scale core systems for their conversational AI platform. Located in San Francisco, the role offers opportunities... ..., and ensuring secure integration with healthcare systems. The salary range is competitive,...SeniorRemote job- A tech startup in San Francisco seeks a Senior/Staff Backend Engineer to architect and build large-scale systems for AI agents. The role focuses on developing reliable, event-driven, and scalable infrastructure, ensuring integration with LLMs while collaborating within...Senior
- ...about the American healthcare system: it’s... ...-stack product engineer. Role... ...well both from a backend and UI perspective... ...engineering team at a startup Have worked... ...-tech company, Senior Class President... ...We've raised $6.5M from 8VC and... ...Gross through AI Grant Nat Friedman...Senior
$250k
Senior Software Engineer (Python) - San Francisco, CA A fast‑growing deep‑tech startup is building AI‑powered tooling that transforms high‑level code into optimized software for advanced... ...Will I Be Doing? Building AI‑powered backend workflows and distributed systems....Senior- Amigo AI, based in San Francisco, is seeking a Senior Software Engineer (Backend) to develop core services for their healthcare AI platform. You'll create systems that manage millions of conversations and ensure high availability and reliability. The ideal candidate has...Senior
- Job Title Senior Backend Engineer Salary Not Disclosed + Equity Company Description Caplight is a seed‑stage, cash‑flow positive fintech startup in San Francisco building the "Bloomberg Terminal for... ...driven data pipelines, and build AI‑native workflows that bring transparency...SeniorLocal area3 days per week
- ...touchpoint with the healthcare system—driving... ...an entrepreneurial Senior Software Engineer with interest in agentic AI and at least 5 years... ...care. And as a "startup within a startup",... ...relationships with 6 of the 10 largest... ...broad, full‑stack or backend‑focused experience...SeniorTemporary workWork at officeFlexible hours
- ...partners with venture capital firms to help build high-growth startups. We lead confidential searches for leadership and critical roles... ...a Series B. You’ll collaborate with a focused group of engineers driving the development of a platform that enables flexible process...SeniorWork at officeRelocationFlexible hours
- Underdog.io is looking for a Software Engineer to develop backend AI infrastructure. This role is vital for constructing secure, high-performance systems for groundbreaking healthcare applications. The ideal candidate will have over 5 years of backend development experience...Senior
$170k - $240k
At Commure, our mission is to simplify healthcare. We have bold ambitions to reimagine the... ...the industry. Our growing suite of AI solutions spans ambient AI clinical documentation... ...data. We're looking for talented Backend Engineers to help us build our health‑tech...SeniorFull time$215k - $290k
A leading Voice AI startup is seeking a Senior Software Engineer - Backend to shape the core systems for millions of AI-driven conversations. This role involves working with real-time audio and global telephony, leading complex projects, and collaborating across teams....Senior$300k
A leading AI startup is seeking exceptional Backend Software Engineers to help architect, build, and scale the infrastructure behind their innovative AI systems. Candidates should have over 5 years of backend engineering experience and strong skills in languages like Python...SeniorRemote job- About Casap Casap is a Series A startup that has raised over $30M from Emergence, Lightspeed... ...finance. Casap is looking for talented Backend Engineers (~10) in San Francisco excited to... ...implementation. Qualifications Minimum of 6+ years of experience in software...SeniorFlexible hours
$210k - $285k
...Description Job Description Senior Backend EngineerAbout the Role We're hiring a Senior Backend Engineer to own and scale the core infrastructure powering an AI-driven logistics platform. This... ...who thrive in fast-moving startup environments, enjoy solving complex...SeniorFull timeH1bRelocationVisa sponsorship- Mochi Health is seeking a Senior Backend Engineer to own core systems powering a scalable AI‑driven healthcare marketplace. You will architect and implement complex healthcare workflows, billing, and partner integrations, while maintaining safety and compliance across...Senior
$145k - $180k
...deployable intelligence for teams, AI agents, and the business... ...About the Role Title: Sr. Backend Engineer Function: Engineering... ...you would do differently. ~6+ years building backend systems... ...regulated space (financial services, healthcare). ~ Async and concurrent...SeniorWorldwideFlexible hours$160k - $300k
...is a pioneering foundational AI company for physical product... ...is to revolutionize how engineering decisions are made, turning... ...together. About the Role As a Senior / Staff Backend Engineer at Apiphany, you’ll... ...equivalent) Personality & Values: Startup mindset: bias toward action,...SeniorWork at officeVisa sponsorshipFlexible hours$140k - $220k
...Max AI – Stripe for Healthcare Max AI is the World’s first human-free, fully-autonomous... ...billing AI agent. Many startups are attempting to attack... ...10 years. And our Head of Engineering was one of the earliest engineers... ...and execution. Required 6+ years of full-stack...- ...in life, and the American healthcare system is completely broken... ...metabolic health clinic. We're an AI-native digital health... ...Nourish is looking for talented Senior Backend Engineers to join our fast-growing... .... We're an early-stage startup where product, design, and...SeniorFull timeWork at officeRemote work
$205k - $235k
...it even better. Our Workflow AI platform automatically... ...ve been named a LinkedIn Top Startup, are valued at over $1 billion... ...looking for an experienced backend engineer to join our growing team as... ...Competitive salaries Comprehensive healthcare benefits Exciting and...Full timeWork at officeWork from homeFlexible hours$225k - $285k
A tech startup in San Francisco is seeking a Backend Staff Software Engineer to help scale their core platform. You will mentor engineers, establish coding standards, and drive the technical roadmap for new product ideas. Candidates must have over 5 years of experience,...Senior- Day One Partners is a high-growth healthcare technology company based in San Francisco. We are seeking a skilled software engineer to design and scale backend systems that power AI-driven healthcare applications. The role involves building reliable, production-grade services...Senior
- ...Dataset You’ll be our seventh engineering hire. You’ll have full ownership... ...at peak load We launched 6 million+ EC2 instances in the... ...points: Previously founded a startup. Extra bonus for a dev-tools startup... ...at “figuring it out”: Recall.ai is a low-structure, high-trust...Immediate start
- ...is building the future of voice AI operating systems for clinicians, transforming how healthcare documentation happens at the... ...Position Overview We are seeking a Backend Engineer to design, build, and scale the... ...Required Qualifications 3–6+ years of experience in backend...
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